Chapters 1-3
Molecules in their natural states such as O2, F2, and I2.
What are diatomic molecules?
A photon has a frequency of 5.45 x 1014 Hz. What is the wavelength of this light?
What is 5.50 x 10-7 m (550 nm)?
The formula mass (u) for Iron (II) Bromide.
What is 215.65 u?
A gas occupies a volume of 225 cm3 and a pressure of 1.51 bar. If the gas expands to a volume of 678 cm3, what will the new pressure be?
What is 0.501 bar?
The ideal gas constant.
What is 0.08206 ((L)(atm)/(mole)(K))?
The study of matter and its changes.
What is chemistry?
The electron configuration of an Al3+ ion.
What is 1s22s22p6 or [Ne]?
What is the mass in grams of 3.99 × 1023 Fe atoms?
What is 37.0 g Fe?
The ideal gas law equation.
What is PV=nRT?
How many SD numbers are in (4.050 x 0.0010)?
What is 4 SD numbers (0.004050)?
1.00 x 106 g. Determine the prefix for 106 g.
What are Mega Grams (Mg)?
The nomenclature for Pb3(PO4)2.
What is Lead (II) Phosphate?
As a sample of natural gas burns, it releases 55.0 J of heat and performs 23.0 J of work on its surroundings. What is the total change in energy for the chemical system? (ΔE=q+w)
What is -88.0 J?
2.0 M (Molarity) HNO3 (aq). Find the concentration of the dissolved ions.
What is [H+] 2.0 M + [NO3-] 2.0 M → 4.0 M?
Which element is reduced and which element is oxidized in the following chemical equation:
2Mg (s) + O2(g) → 2MgO (s)
What is reduced: O2-, what is oxidized Mg2+?
The creator of the first periodic table.
Who was Dimitri Mendeleev?
Balance the chemical equation:
Al(NO2)3+ Ca → Al + Ca(NO2)2
What is, 2Al(NO2)3+ 3Ca → 2Al + 3Ca(NO2)2?
The number of valence electrons in the acetate ion (C2H3O2-).
What is 24 valence electrons?
The definition of an Arrhenius acid.
What is (an acid that produces H3O+ or H+ ions in water)?
Which of these elements in the most electronegative: Fluorine, Oxygen, Sodium, Carbon, Potassium, and Zinc?
What is Fluorine?
An isotope has 92 protons and 143 neutrons. Write the atomic number, mass number, and elemental symbol.
What is 23592U?
Write the Net Ionic Equation for this chemical rxn:
Pb(NO3)2 (aq) + 2 KCl (aq) → PbCl2 (s) + 2 KNO3 (aq)
What is Pb2+(aq) + 2Cl- (aq) → PbCl2 (s)?
The electron and molecular geometry for CH4.
What is tetrahedral and tetrahedral?
Write the net ionic equation for HCl (aq) + NaOH (aq).
What is H+ (aq) + OH- (aq) → H2O (l)?
The nomenclature difference between SO42- and S2- ?
What is: Sulfate ion (SO42-) & Sulfide ion (S2-)?